Coupling for armored hose.



' No, 817,058. PATENTED APR. 3, 1906.

E. T GREENFIELD. COUPLING FOR ARMORED HOSE.

APPLICATION FILED JAN.12, 1905.

WITNESSES:

a. ITED STATES P TENT OFFICE.

EINVIN T. GREENFIELD, OF MONTIOELLO, NEW YORK.

COUPLING FOR AHMOFBED HOSE- me in the United States Patent Oflice on the 15th of October, 1904, Serial No. 227,314; and it has for its objects, first, to provide means whereby armored hose may be connected together in sectional lengths through the agency of a coupler in which there is a continuous metallic connection between the armor of the two sections of hose thus joined together and of such a nature that it is practically impossible to blow out the coupling connection by any pressure submitted to the hose from within; second, to adapt such a coupler for use with the coupling connection of a hydrant, steam-pipe, or the like; third, to provide a metallic coupler for armored hose of such a nature that anumber of sections of such hose may be connected together in such a way as to give the greatest'possible lineal strength to the hose, thereby making it possible to utilize hose of this nature when suspended from hi h elevations, as in the upper stories or from the tops of modern steel-frame buildings of great height.

My invention will be fully understood by referring to the accompanying drawings, in which- Figure 1 isa longitudinal section, full size, of an armored hose, illustrating my improvement for attaching the same to the coupling connection of a hydrant, steam-pipe, or the like, one-half of one of the coupling-rings being shown in elevational view with the bolts for securing the same in sectional view. Fig. 2 is an end elevational view as seen looking at Fig. 1 from left to right.- Fig. 3 is a transverse sectional view taken on the line X X and as seen looking thereat from left to right in the direction of the arrows.

Referring now to the drawings, in which like numerals represent like arts wherever used, 1 2 3-represent the flexib e hose and the interlocking armor therefor of what is known in the art as the Greenfield armored hose, disclosed in a pr or patent granted to me by the United States Patent Office on the 8th day of December, 1903, and numbered 746,630.

Specification of Letters Patent.

A li ation fil d January 12, 1905. Serial No. 240,722.

Patented April 3, 1906.

6 6 represent half or.two-part couplingrings which are screw-threaded internally to conform to the spiral or screw-threaded conformation of the armor strips 2 3, said rings being provided with a air of lugs or ears 4 4, adapted to receive bolts 5 5. Eachvhalf or two-part coupling-ring is provided at one end with an internally-pr0jecting shoulder 7, adapted to bear when in locked position .against a ring-shaped part 9, integral with a connecting-sleeve 10, bell-mouthed, as shown at 8, and provided with cylindrical shoulders 11 and 13, 12 being a connecting-ring screwthreaded internally and provided externally with radially-disposed integral lugs or pins for effecting the manipulation of the ring by a pipe-wrench.

14 is a water-tight gasket adapted to make a water-tight joint between the inner end of the cylindrical shoulder 11 and the abutting end of the coupling connection 16 of a hydrant, said connection being screw-threaded at its exterior end and cone-shaped interiorly, as shown at 15, 17 being an enlarged chamber near the outer end of the coupling connection.

The parts are put together as follows: Suppose the coupling connection 16 of the hydrant be secured by its screw-thread at the I end 15 directly to the hydrant. The connecting-sleevelO is inserted with its small end through the ring 12, so that the shoulders 11 and 13 assume the positionshown in Fig. 1. The end of the hose 1 is then forced over the outer end of the sleeve 10 until it abuts against the ring-shaped, part 9. The two half coupling-rings 6 are then placed in position'about the outer or armored portion of the hose, so that the internally-projecting shoulder 7 bears snugly against the ringsha ed part 9. The bolts 5- are then placed in t e bolt-holes in the lugs or ears 4 and the nuts turned firmly home until all of the parts are securely bound together. The gasket 14 is then put in place and with a pipe-wrench acting upon the intergal pins of the connecting-ring 12 the hose is secured directly to the coupling connection 16.

- It is obvious that for connecting two sections of hose together it would only be required that the connecting-sleeve 10 and its ring-shaped art 9 be duplicated-that is to say, a simpli; connecting-sleeve 10 be provided with two ring-sha ed parts 9 near the center thereof,-so that t e two arts of each pair of half coupling-rings 6 sha grip its corresponding ring-shaped part 9,

I to

suspend such hose from points of 'gh elevation, as upon the tops or from the upper sto-' ri'es of existing steel-frame buildings found in the large cities in the United States, and the great strength of thehose, due to the armor and the peculiar manner of connecting the same, makes it practically indestructible, either from tensile strain or internal ressures.

I do not limit my invention to t 'e details of construction illustrated in the accompanying drawings, as a number of the features thereof might be departed from and still come within the scope of my claims hereinafter made.

Having thus described my invention, what I claim and desire to secu renby Letters Patwnt oftlfelfiiited States, is

1. A hose-coupler for a spirally-armored hose consisting of a two-part coupling-ring screw-threaded internally so as to conform to the spiral armor, each part being provided with an internally projecting shoulder; in combination with a connecting-sleeve having an integral ring-shaped part adapted to bear against the internally-projecting should ers and the end of the hose.

2. A hose coupler for a spirallyarmored hose consisting of a two-part couplingring screw-threaded internally so as to conform to the spiral armor, each part being provided with an internally projecting shoulder; in combination with a connecting-sleeve having an integral ring-shaped'part; together with means for attaching the connecting-sleeve to an additional connecting-ring.

3. A hose-coupler for a spirally-armored hose consisting of a two-part coupling-ring screw-threaded internally so as to conform to the spiral armor, each part being provided with an internally-projecting shoulder at one end; together with lugs or ears, bolt-holes and bolts for securing the parts together; in combination with an internally-disposed connecting-sleeve provided with integral means for securing it within the hose and in locked re lation to the internally-projecting shoulders.

4. A hose-coupler for spirally-armored hose consisting of a two-part coupling-ring screwthreaded internally, each part beingprovided with an internally-projecting shoulder at one end lugs or cars; bolt-holes and bolts; in combination with a connecting-sleeve provided with an internally-disposed ring-shaped part adapted to form a connection between the end of the hose and the internally-projecting shoulders, said sleeve having also additional shoulders at one end; a connecting-ring screwthreaded internally and provided with shoulders adapting it to be secured to the exterior end of the before-mentioned sleeve; a coupling connection provided with screw-threads for securing the before-mentioned ring, and a gasket adapted to make a water-tight connection between the connecting-sleeve and the coupling connection, all of said arts being constructed substantially as and or the purpose set forth.

In testimony whereof I have signed my name to this specification in the presence of. two subscribing Witnesses.

EDWIN T. GREENF IELD.

Witnesses:

' C. J. KINTNER,

M. F. KEATING. 

